code: def issue_manager(self, lab):
      return NullIssueManager(datalab=lab)
  
file_path: cleanlab/tests/datalab/issue_manager/test_null.py
imports: import numpy
  import pytest
  from hypothesis.extra.numpy import arrays, array_shapes
  from hypothesis.strategies import floats, just
  from hypothesis import HealthCheck, given, settings
  from cleanlab.datalab.internal.issue_manager.null import NullIssueManager
label_desc: Use image node_id 3 for calling the TestNullIssueManager obj's underlying member method code with example usage: obj.issue_manager(lab) and returns: NullIssueManager